Bactericidal and fungicidal compositions and methods of killing bacteria and fungi using 8-oxyguinoline-and 8-oxyguinaldine acrylates

ABSTRACT

The present invention relates to 8-oxyquinolines of the formula   WHEREIN A. X represents hydrogen or halogen and R1 represents hydrogen or methyl, and the substituents R2 and R3 represent hydrogen or halogen, or wherein B. X represents methyl, R1 represents hydrogen and one of the two substituents R2 and R3 denotes halogen and the other hydrogen, or both substituents R2 and R3 denote halogen, and in the case of (b) R1, R2 and R3 represent substituents that differ from one another if R2 represents chlorine or bromine, or WHEREIN C. X represents methyl and R1 represents methyl and R2 and R3 represent hydrogen or halogen, and their use as active ingredient in bactericidal and fungicidal preparations.

United States Patent [191 Huber-Emden et al.

[ Mar. 25, 1975 i 1 BACTERICIDAL AND FUNGICIDAL COMPOSITIONS AND METHODS OF KILLING BACTERIA AND FUNGI USING S-OXYQUINOLINE- AND S-OXYQUINALDINE ACRYLATES [75] Inventors: Helmut Huber-Emden, Basel; Adolf Hubele, Riehen; Guenter Klahre,

Reinach/Baselland,all of Mimi [73] Assignee: Ciba-Geigy AG, Basel, Switzerland [22] Filed: Mar. 14, 1974 [2]] Appl. No.: 451,337

Related US. Application Data [62] Division of Ser. No. l l4,069, Feb. 9, 1971, Pat. No.

[30] Foreign Application Priority Data Primary Examiner-Jerome D. Goldberg Assistant ExaminerAllen J. Robinson Attorney, Agent, or FirmFrederick H. Rabin [57] ABSTRACT The present invention relates to 8-oxyquinolines of the formula wherein a. X represents hydrogen or halogen and R represents hydrogen or methyl, and the substituents R and R represent hydrogen or halogen. or wherein b. X represents methyl, R represents hydrogen and one of the two-substituents R and R denotes halogen and the other hydrogen, or both substituents R and R denote halogen, and in the case of (b) R R and R represent substituents that differ from one another if R represents chlorine or bromine, or

wherein c. X represents methyl and R represents methyl and R and R represent hydrogen or halogen, and their use as active ingredient in bactericidal and fungicidal preparations.

13 Claims, No Drawings This application is a divisional of Ser. No l l4,()69, filed 2/9/7 I, now U.S. Pat. No. 3,813,399 issued /28/74.

The present invention relates to new 8-oxyquinoline acrylates and 8-oxyquinaldine acrylates respectively, It)

and to their manufacture. The invention further relates to pesticidal compositions containing these compounds as active substance, also to the use of the compounds for combating thallophytes.

The active substances correspond to the formula wherein a. X represents hydrogen or halogen and R represents hydrogen or methyl, and the substituents R and R represent hydrogen or halogen, or wherein b. X represents methyl, R represents hydrogen and one of the two substituents R and R denotes halo gen and the other hydrogen, or both substituents R and R denote halogen, and in the case of (b) R,,

R and R represent substituents that differ from one another it R represents chlorine or bromine,

wherein c. X represents methyl and R, represents methyl and R and R;, represent hydrogen or halogen. By halogen is to be understood fluorine, chlorine, bromine. or iodine.

A particularly important group of compounds is that of formula (I), in which R R and R have the meair ings indicated and X denotes a hydrogen atom, or a bromine atom or a chlorine atom.

In this connection, those compounds are preferred in which X represents hydrogen, chlorine or bromine, R

represents hydrogen or methyl, and R and R each represents. rqssa FIIlQR PF br m n 9 iqq n The polymerisation possibilities of the individual methacrylates of 8-oxyquinoline have been investimatic nucleus and the tendency to autopolymerisation.

The compounds of formula (I) according to the invention can be manufactured by one of the following methods without any tendency to become resinous.

The compounds can be manufactured by esterifying, 66

in the usual way, a correspondingly substituted 8- oxyquinoline of the formula wherein R R and R have the meanings as given for formula (I), with a reactive acrylic acid or methacrylic acid derivative, preferably the acid halide, or. if in the formula for the final products X halogen, with a haloacrylic acid halide of the formula halogen- OCCH=CH- or with a halopropionic halide of the formula halogen-OC-CHXCH X, wherein in the first case I mole H-halogen and in the second I mole- H-halogen and subsequently or simultaneously l mole H-X is split off to form the double bond (in the presence of an acid-acceptor). 4

The compounds of formula (I), wherein X=halogen can also be manufactured by esterifying an 8- oxyquinoline of formula (II) with a reactive derivative of acrylic acid, preferably the acid halide. ifthe substituent X=halogen is introduced into the initially resulting product (III) by the subsequent addition of 1 mole X to the double bond and the splitting off I mole HX.

The subsequent halogen addition of the double bond is advantageously carried out in acetic acid as solvent. Substantially better yields and more homogeneous final products are obtained if, during the halogen addition. the basic function in the compound of formula III, i.e., the basic N atom of the oxyquinoline ring, is deactivated by means of protonisation with a strong acid, for example, sulphuric acid.

The splitting off of 1 mole X is effected by means of i-an alkali carbonate or alkali hydrogen carbonate, for example in aqueous methanol or acetone. Preferably, however, the splitting off ofHX is effected by means of a suitable tertiary amine, for example, triethylamine, in inert, water-immiscible solvents, for example. benzene, toluene, xylene and the like. the tertiary amine can here be used in stoichiometric amount or in excess, in the process of which the HX salt of the tertiary amine is formed. It is, however, used preferably in an amount, for example, of 1-H) percent of the stoichiometric amount, with at least a stoichiometric amount of alkali hydroxide in the form of a strong, aqueous alkali lye, for example 4N sodium hydroxide solution, being added in order to complete the splitting off of HX. The alkali lye reactivates the tertiary amine from its HX salt, which forms as an intermediate, so that catalytic amounts of tertiary amine suffice to carry out the reaction. By this method, the splitting off of HX takes place at ambient temperature quantitatively, rapidly and under mild conditions.

The compounds of formula I wherein X=halogen can be synthetised in a particularly satisfactory way in a single stage process. To this end the correspondingly substituted 8-hydroxyquinoline or S-hydroxyquinaldine is reacted with the desired 2,3-dihalogenpropionic acid halide in an inert solvent, in the process of which a tertiary amine such, for example, a triethylamine, both binds the H-halogen resulting from the ester formation, and also effects within the propionic acid molecule the splitting off of HX, which leads to the a-haloacrylic acid bond. The reaction can be carried out under mild conditions.

If the process is carried out in a solvent in which the hydrogen halide salt of the tertiary amine is insoluble, but in which the desired reaction product is soluble (such, for example, as benzene, toluene, etc.), then this salt of the amine can be separated in a simple manner by filtration. The compound of formula (I) with X-- halogen is the obtained by evaporating the solvent or by precipitation.

The active substances of formula (I) can be used by themselves or in the form of agents for combating thallophytes. Besides the active substance, such agents contain in addition carriers, solvents, diluents, dispersing agents, emulsifiers, wetting agents, adhesives, thickeners and/or fertilizers, also other pecticides if necessary.

By thallophytes are to be understood chiefly lower organisms, such as bacteria and fungi.

The active substances of formula (I) possess very good activity against representatives of the class Phycomycetes, for example, phytopathogenic fungi such as Botrytis and Piricularia, but also against various other disease fungi in grain, maize, rice, vegetable, fruit and other cultures. The active substances of formula (I) may also be used as additives to soaps and detergents, since they combat skin fungi and are at the same time kind of the skin. They are particularly effective against the following species of fungi: Cocliliobolus miyabr'anus, Corticium, Cerospora, Alternaria, Venruria [naeqmllis. Podosp/laem Leucorriclm, Urumycets' phaseoli, fervor 10m upii, (woos m belicolu, Cercuspora muscle, Piric'ulariu sp Erysiplle cic'lmrucearum, Penicillin"! a'igitulum, Splmerotlu'cu lmmuli, Diplucarprm IUSIIL, Uncinulu nec'umr, ('occumyces lzicmalis, Cladosporl'mn carpop/zilum, Erysip/ze graminis lmrdei, Monuliniu (Sclero- Iinia) Lam, Monoliniu (Scleroliniu) fructicola, Piricu- [aria uryzue, Pucciniu reconzlim, P. coronata, P. glumarium, Puccinia graminis rririci, Aspergillus niger, Aspergillus rerreus, Rhizoctonia, Fusarium, Verticillium.

The active substances of the invention have likewise a fungitoxic action on fungi that attack plants from the soil and partially cause tracheomycoses, such as Fusarium cubense, Fusarium diam/ii, Verticl'llium alboatrum and Pliialopliora cineresc'ens.

The 8-oxyquinoline acrylates and 8-oxyquinaldine acrylates can be used in the usual formulations such, for example, as emulsion concentrates, wettable powders, pastes, soluble powders, dusting agents and granules. These are manufactured in the usual way, for example, by extending the active substances with solvents and/0r carriers, optionally with the conjoint use emulsifiers and/or dispersing agents (cf., Agricultural Chemistry, March 1960, pages to 38). Possible adjuvants are chiefly: solvents, for example, optionally chlorinated aromatic carbohydrates (for example, xylene, benzene, chlorobenzene), paraffins (for example, petroleum fractions), alcohols (for example methanol, ethanol, butanol), amines (for example ethanolamine, dimethylformamide and water; carriers, for example natural and synthetic stone powders (kaolin, diatoma ceous earth, chalk, talc, highly dispersed silica, silicates); emulsifiers, such as non-ionic and anionic emulsifiers (for example polyoxyethylene fatty acid esters, polyoxyethylene fatty alcohol ethers, alkyl sulphonates and aryl sulphonates) and dispersing agents, for example lignin, sulphite waste lyes and methyl cellulose.

As has been mentioned already above, the active substances can be present in the previously mentioned formulations in mixture with other known active substances. The formulations contain in general between 0.1 and 95 percent by weight of active substance, but preferably 0.5 to percent.

The agents according to the invention, or their concentrations, are applied in the usual way, for example by squirting, spraying, dusting or sprinkling. The active substance can be used in a concentration of 5 to 0.00005 percent, depending on the purpose of the application. In especial cases, however, it is possible. or even necessary, to exceed this range of concentration or to go below it.

The active substances of formula (I) can also be mixed with other standard commercial fungicides; in doing so, a broadening of the activity spectrum is obtained in many cases. However, it very many other cases synergistic effects are also obtained.

The following active substances are examples of those that can be used in admixture or conjunction with the compounds of formula (I):

Inorganic substances Elemental sulphur, ammonium polysulphide, sodium polysulphide, barium polysulphide, calcium polysulphide and calcium thiosulphate (lime sulphur), calcium hypochlorite, boric acid, sodium tetraboratedecahydrate (borax), zinc chloride, magnesium borate, nickel sulphate, potassium chromate, lead arsenate. cadmium chloride, and cadmium carbonate;

Copper substances copper(l) oxide (cuprous oxide), Bordeaux mixture. copper (ll) sulphate-pentahydrate (copper sulphate), basic copper (II) chloride (copper oxychloride), copper(lI) phosphate, tribasic copper (ll) sulphate (tribasic copper sulphate), basic copper (ll) carbonate, cop per (II) dihydrazine sulphate,'a copper-amine complex. copper(II) sulphate/ammonium carbonate mixture. copper(II) chloride/basic copper(ll) sulphate mixture. basic copper(II) carbonate/zinc salt mixture, copper- (II)-zinc chromate complex (copper zinc chromate), copper(ll)-zinc-cadmium-calcium chromate complex. copper(ll) salt of oleic acid (copper oleate), a copper (II) salt of a fatty acid, copper(ll) salt of naphthenic acid (copper naphthenate), copper (ll) salt of 8- hydroxyquinoline (oxine copper), copper(ll) salt of l,2-naphthoquinoneoxime-(2), and copper(ll) salt of 3-phenylsalicylate;

Tin and mercury substances bis-(tri-n-butyl tin)oxide, triphenyl tin hydroxide (fentin hydroxide), triphenyl tin acetate (fentin acetate), bis-(tributyl tin)succinate, mercury(l) chloride (calomel), mercury(ll) chloride (mercuric chloride), mercury(II) oxide, mercury-zinc chromate complex. mercury(ll) lactate, ethylmercury chloride. 2 hydroxyethyl mercury acetate, ethylmercury isothiocyanate, 3-ethoxypropyl mercury bromide, chloromethoxypropyl mercury acetate, methoxyethyl mercury chloride, 2-methoxyethyl mercury silicate, bis-(methylmercury) sulphate, bis-(methylmercury) ammonium acetate, ethylmercury acetate, Z-methoxyethylmercury acetate, ethylmercury phosphate, isopropylmethylmercury acetate, methylmercury cyanide, methylmercury benzoate, N-cyano-N'(methylmercury) guanidine, methylmercury pentachlorophenolate, ethylmercury-2,3- dihydroxypropyl mercaptide, methylmercury-8- hydroxyquinolate (Ortho LM), N-(methylmercury)- l 4,5,6],7-hexachlorobicyclol2,2,1]hept-5-ene-2,3- dicarboximide. N-(ethylmercury)-l,4,5,6,7,7- hexachlorobicyclol2,2,1]hept-5-ene-2,3- dicarboximide, sodium salt of ethylmercury thiosalicylate, N-(ethylmercury)-para-toluenesulphonic acid anilide, phenylmercury acetate (PAM), phenylmercury propionate, phenylmercury triethanol-ammonium lactate (PAS), phenylmercury urea, N-(phenylmercury)- 1,4,5 ,6,7,7-hexachlorobicyclol 2,2,1 ]hept-5-ene-2,3- dicarboximide, phenylmercury dimethyldithiocarbamate, phenylmercury formamide, phenylmercury chloride, phenylmercury acetate, phenylmercury benzoate, phenylmercury borate, phenylmercury hydroxide, phenylmercury iodide, basic phenylmercury nitrate, phenylmercury monoethanolamine lactate, phenylmercury salicylate, hydroxymercury chlorophenol, hydroxymercury trichlorophenol, hydroxymercury nitrophenol, N-phenylmercury ethylenediamine, phenylmercury monoethanolammonium acetate, pyridylmercury acetate, diphenylmercury-8- hydroxyquinolate, a mercury(ll) complex with an organic phosphate, mixture of methylmercury2,3- dihydroxypropylmercaptide and methylmercury acetate. mixture of hydroxymercury chlorophenol and hydroxymercury nitrophenol, and mercury-cadmium organic complex; Further organic metal compounds cadmium succinate, cadmium-di-n-propylxanthogenate, cadmium-8-hydroxyquinolate. phenylaminocadmium acetate, phenylaminocadmium dilactate, methylarsine sulphide, zinc octate and Zinc oleate; Simple organic compounds (aliphates) formalin, paraformaldehyde, acrolein, methyl bromide, methyl isothiocyanate, tetraiodoethylene, 1,3- dichloropropene and related chlorinated C hydrocarbons, l-chloro-3-bromopropene( l trans-1,4- dibromobutene(2), l,3-dichloropropene(l), l-chloro- 2-nitropropane, 2-chlorol-nitropropane trichloronitromethane, dichlorotetrafluoro-acetone, sodium salt of propionic acid, calcium salt of propionic acid, chlorofumaric acid-bis-B-chloroethyl ester, sorbic acid and the potassium salt thereof, 2-propene-l,l-diolacetate, Z-aminobutane, dodecylguanidine acetate (dodine), dodecylquanidine phthalate, a-chloroacetyl-l,3- aminopropionitrile, a-bromoacetylvalinamide, 1,2- dichloro'l-(methylsulphonyl) ethylene, 1,2-dichlorol(butylsulphonyl)ethylene, and trans-1,2-bis-(npropylsulphonyl)ethylene; Benzene derivatives para-dichlorobenzene, hecta-chlorobenzene (HCB), 1,2,4,5-tetrachloro-4-nitrobenzene (tecnazene), pentachloronitrobenzene (quintozene), 1,3.5-trichlro- 2,4,6-trinitrobenzene, isomer mixture of 1,3,4- trichloro-2,-dinitrobenzene and l,2,3-trichloro-4,6- dinitrobenzene, 2,4,5,6-tetrachloroisophthalic acid nitrile, 2,4-dinitrophenylthiocyanate, diphenyl, ortho- 6 nitrodiphenyl, l-chloro-2,4-dinitronaphthalene, acenaphthene; Phenols 2,4,6-trichlorophen0l, 2,4,5-trichlorophenol, 2,4,5- trichlor phenyl acetate, 2,4,5-trichlorophenyl chloroacetate, trichlorophenol zinc salt, meta-cresyl acetate, 2,3,4,6-tetrachlorophenol, pentachlorophenol (PCP), ortho-dihydroxybenzene, 2,4-dihydroxy-nhexylbenzene, 2-phenylphenol (ortho-phenylphenol), 3,5-dibromosalicylic aldehyde, 2-benzyl-4- chlorophenol, 2,2-dihydroxy-5,5- dichlorodiphenylmethane (dichlorophene), 2,2- dihydroxy-3,3,5,5,6,6'-hexachl0rodiphenylmethanc, 2,2-dihydroxy-5,5-dichlorodiphen'ylsulphide, 2,2- dihydroxy3,3,5,5-tetrachlorodiphenylsulphide, 2,2- dihydroxy-3,3',5,5-tetrachlorodiphenylsulphide disodium salt, 4-chloro-orthophenylphenol, l,4-dichloro- 2,5-dimethoxybenzene, salicylic anilide, bismuthsalicylate, trifluoromethylsalicylic anilide halogenated with chlorine or bromine, brominated salicyclic anilide, and (3,5-dimethyl-4-chlorophenoxy)-ethanol; Dinitrophenol derivatives 2-( l-methyl-n-propyl )-4,6-dinitrophenyl-2- methylcrotonate (binapacryl), Z-(I-methyLn-propyh- 4,6-dinitrophenylisopropylcarbonate (dinobuton). 2- (l-methyl-n-heptyl)-4,6dinitrophenylcrotonate (dinocap), methyl-2,6dinitro-4-( l-ethylhexyl )phenylcan bonate methyl-2,6-dinitro-4-( lfpropylphenyUphenylcarbonate (dinocton p), 4-nonyl-2 6-(linitrophenylbutyrate, and S-meth \'l-2-( l-methyl-n-heptyl)-4,(1- dinitrophenylthiocarbonate;

Aniline derivatives 2,6-dichloroA-nitroaniline (dichloran), 2- cyanoethyl-N-phenylcarbamate, propynyl-N- phenylcarbamate, and a-(Z-bromoacetoxy)actanilide; Quinone derivatives 2,3,5,6 tetrachlorobenzoquinone(1,4) (chloranil), 2,3-dichloronaphthoquinone( 1,4) (dichlone), 2- amino-3-chloronaphthoquinone(1,4), 236,7-

tetrachloro-4a,8aepoxyl ,2,3,4,4a,8a-hexahydrol ,4- methanonaphthalene-S,S-dione, and quinonoximehen- Zoylhydrazone (benquinox);

Trichloromethylthio derivatives N-(trichloromethylthio)phthalimide (folpet), N- (trichloromethylthio )cyclohex-4-ene-l ,2- dicarboximide (captan), N-( l,l,2,2- tetrachloroeth ylthio)cyclohex-4-enel ,2- dicarboximide (captafol), N-methanesulphonyl-N- 9 Mixtures nickel sulphate/maneb mixtureQmaneb/mercaptobenzthiazole mixture, zineb/mercaptobenzthiazole mixture, zineb/nickel (II) chloride mixture, zineb/nickel(ll) sulphate mixture, ziram/basic copper sulphate mixture, ziram/zinc/mercaptobenzthiazole mixture, thiram/cadmium hydrochloride mixture, thiram/hydroxymercury chlorophenol mixture, thiram/phenylmercury acetate mixture, polyethylene/bisthiouram sulphide/copper oxychloride mixture, methylarsine/bis-(dimethyldithiocarbamate)/ziram/thiram mixture, folpet/phenylmercury acetate mixture, dodine/ferbam/sulphur mixture, diethianone/copper oxychloride mixture, dichlone/ferbam/sulphur mixture, dinocap/dinitrooctylphenol mixture, captan/quintozene/tribasic copper sulphate mixture, cadmium propionate/phenylmercury propionate mixture, formaldehyde/urea mixture and phenylammonium cadmium dilactate/phenylmercury formamide mixture.

EXAMPLE 1 Manufacture of Oxyquinoline Acrylates 400 ml of sodium hydroxide solution was added to the filtrate and the mixture stirred for 42 hours, so that both phases were thoroughly mixed with each other. Thereafter the unchanged -chloro-4-brom0-8- oxyquinoline was collected by suction filtration from the Na salt (approx. 80 g).

The phases in the filtrate were separated. The benzene phase was neutralised by stirring with 3 300 ml ofwater, treated with activated charcoal and dried over Na SO whereupon the solvent was removed in a m tary evaporator.

1.066 kg 88 percent of theory) of active substance No. l

was obtained in the form ofa crystalline residue. Melting point after recrystallization 100.5 l0] .5C.

The compound can be recrystallised from cyclohexane (l g/approx. 4 ml) or from a large quantity of petroleum ether; it occurs in the form of large crystals.

The substances of the formula \N 3 (III) 0 --CO-(I}=CH2 are obtained in analogous manner.

Compound R R R,, X Phys. constant 2 H Cl C] H m.p. 8lC 3 H Cl l H m.p. l02l03C 4 H C! H H m.p. 7s 80C 5 H Br Br H m.p. l l4-l 16C 6 H l l H m.p. 1 l8-l20C 7 H H H H m.p. 51 52C 8 CH Cl Cl H m.p. 77 79C 9 CH H H H hp l76-l 78C 10 CH Br H CH m.p. 58 61C ll CH Br Br CH m.p. 75 78C 12 H Cl Br CH; m.p. 74 75C l3 H Cl 1 CH; mp. 93 95C l4 H l l CH; m.p. lll-l l3C 15 CH, H H CH mp. 68 70C 16 CH Cl Cl CH;, m.p. 80 82C EXAMPLE 2 Manufacture of Oxyquinoline-Z-bromoacrylates 817 g of sulphuric acid (96 percent) was dissolved with ice-cooling in 40 ml of glacial acetic acid.

The solution (a) was slowly added with ice-cooling and stirring to 50 g ofactive substance No. l, dissolved in 140 ml of glacial acetic acid. Thereafter 25.8 g of bromine was dissolved in 30 ml of glacial acetic acid at room temperature and while cooling with water from the exterior. This solution was added dropwise with stirring over the course of 1 hour (change in colour to red), and the mixture stirred for a further 2 hours at room temperature, in the process of which there occurred a strong brightening of colour to light yellow. The solvent was subsequently distilled off in a rotary evaporator under-a water jet vacuum at a bath temperature of 40-50C.

The distillation residue (approx. l00l 10 g) containing glacial acetic acid was stirred with 200 ml of benzene and the resulting suspension stirred into 250 ml of 4N sodium hydroxide solution at room temperature while agitating the mixture vigorously. The self-heating that occurs in the process was compensated by addition of ice. The mixture was agitatedfor a further one fourth hour, thereafter 2 ml of triethylamine were added and stirring was continued for one-half hour, so

that the two phases were thoroughly mixed with each other. After filtration by suction, the filtrate was given a final wash with a little benzene. The phases in the filtrate were separated. The benzene phase was washed with 2 X 100 ml of water (in the course of which it remained alkaline), treated with a sufficient amount of Na SO and 20 g of activated charcoal (strong brightening of colour) and the solvent distilled off in a rotary evaporator.

After recrystallisation from cyclohexane (=70 percent of theory) of active substance No. 17

/ l \N Br O"G,"C=CH til 2 5 O BI" was obtained (m.p. ll-l 12C).

EXAMPLE 3 126 parts of 1,2-dibromopropionyl chloride in 200 parts by volume of toluene were added dropwise over the course of half an hour to 72 parts of -chloro-8- hydroxyquinoline and 100 parts of triethylamine in l,000 parts by volume of toluene, in the process of which the temperature rose to 55C. After 2 hours, the precipitated triethylamine hydrochloride and triethylamino hydrobromide were filtered off and the filtrate concentrated in a rotary evaporator under reduced pressure. By adding 200 parts by volume of petroleum ether (boiling point 5070C) and scratching with a glass rod, the reaction product of the formula (active substance was obtained in crystalline form.

Melting point: 100l03C; 116 g (93 percent of theory relative to the 5-chloro8-hydroxyquinoline).

The substances of the formula EXAMPLE 4 20 g of active substance are dissolved in a mixture of 48 g of diacetone alcohol, 16 g of xylene and 16 g of an anhydrous high molecular condensation product of ethylene oxide with a mixture of higher fatty acids. This concentrate can be diluted with water to given fungicidal emulsions or liquid sprays of every desired concentration.

EXAMPLE 5 g of active substance are mixed with 2-4 g of a wetting agent, for example the sodium salt of an alkylpolyglycolether-monosulphate, l-3 g of a protective colloid, for example sulphite waste lye, and 15 g of an insert, solid carrier such, for example, as kaolin, bentonite, chalk or diatomaceous earth, and subsequently ground fine in a suitable mill. The resulting wettable powder, stirred into water, yields a very stable fungicidal suspension.

EXAMPLE 6 5 of active substance are mixed and ground with g of calcium carbonate. The product is used as a fungicidal scattering preparation.

EXAMPLE 7 5 g of active substance are mixed with 95 g of a pulverulent carrier, for example sand or calcium carbonate, and moistened with 1-5 g of water or isopropanol. The mixture is subsequently granulated. Before granulation, a multiple -amount, for example -900 parts of an optionally water-soluble artificial manure, as, for example ammonium sulphate, can be mixed with the above mixture or with a mixture rich in active substance, for example a mixture of 10 g of active substance and 90 g of calcium carbonate.

EXAMPLE 8 20 g of active substance and 80 g of talc are very finely ground in a ball mill. The resulting mixture is used as fungicidal dusting agent.

EXAMPLE 9 A fungicidally active solution that can be emulsified in water is obtained by mixing 50 g of active substance. 45 g of xylene, 2.5 g of an ethylene oxide condensation product of an alkyl phenol and 2.5 g ofa mixture of the sodium salts of dodecyloxyethyl sulphuric acid.

EXAMPLE l0 EXAMPLE 11 Rice plants were raised in a greenhouse and sprayed once prophylactically with an aqueous spray containing 0.1 percent of active substance and prepared according to Example 4. Two days afterwards, the so treated plants were infected with conidia of Piricularia oryzae Bri. et. Cav. After 7 days incubation in a humidity chamber, the treated plants were attacked by fungi as follows, whereas the untreated test plants were lOO percent attacked:

Zucchetti plants were raised in a greenhouse and sprayed once prophylactically with an aqueous liquid 20 spray containing 0.] percent, 0.01 percent or 0.00l

percent of an active substance and prepared according to Example 4. Two days later, the so treated plants; were infected with spores of Erys'iphe cichoriacearrmw DC. After l2-l4 days, the treated plants showed only slight signs of attack by fungi at the concentrations in-' dicated, whereas the untreated test plants were 100 percent attacked:

Bean plants were raised in a greenhouse and sprayed once withan aqueous spray containing 0.1 percent of Compound Attack Compound No. Attack 7 5 "/1 3 5 20 5 /1 22 5 '/1 4 5 71 5 5 /1 18M 5 71 21 5 "/1 2 5 71 30 5 "/1 I) 5 /1 9 l "/1 l /1 24 5 71 27 5 "/1 8 5 '71 EXAMPLE 14 Three fully developed leaves of equal size of Vicia faba, which were sprayed in an atomizer until droplets formed with a spray containing 0.1 percent content of active substance manufactured from the active substance No. 30 formulated as percent spraying powder 10 WP), were each placed in Petri dishes provided with moistened filter paper. When the leaves were again dry, they were infected with a freshly prepared, standardised spore suspension of the fungus (concentration: 100,000 spores/ml) and kept for 48 hours in a humid atmosphere at C. After this time had elapsed. the leaves exhibited initially dot-shaped spots that rapidly spread. The number and size of the infected areas served as a basis for evaluating the activity of the test substance. Whereas the untreated test leaves showed 100 percent attack, only 5 percent of those treated with compound N0. were attacked.

EXAMPLE 15 r ther diluted 1:10 in a test tube. These solutions were then inoculated with a bacterium and incubated (bacteristasis) for 48 hours at 37C. Twenty-four hours later, one platinum wire loop full of inoculated solution was smeared on glucose-agar plates and incubated for 24 hours at 27C (bactericidal effect). After this time had elapsed, the following limiting concentrations of the bacteriostasis or of the bactericide respectively were ascertained ppm:

active substance and prepared according to Example 4.

7 Two days later, the so treated plants were infected with uredo spores of Uromyces plraseoli (Pers.) Wint. and kept for 48 hours in a humidity chamber. After 10 to 14 days of subsequent incubation in the greenhouse, the treated plants were attacked by fungi as follows, whereas the untreated test plants were 100 percent attacked:

b. Determination of the minimal inhibiting concentration (MIC) against bacteria and fungi in the gradient plate test The compounds of formula (I) were mixed in suitable formulations (for example as solutions in dimethylsulphoxide) of certain concentration with warm meat brothagar. The liquid mixtures were poured onto a solidified, wedge-shaped (=diminishing thickness of spect of the bacteria strains listed in the table: ll)

Bacteria or Fugus Cultures (.oni- (oni- Conn (ompound pound pound pound resp. No. 2 No. I No. l7 No, l8

Pat'cilunrrces ruriuli 10 2t) 6 3 Tl'f('/IU])/| \IOH Ti/mtlin res. l 2 3 'I'riz'Imp/rvmn In(unwrap/[vies l() l 4 Z 'l'ric/mpIrr/on iull'rdlluilule H) l 3 2 Aspt'rgillus t'legunx 25 6 3 .S'ucuroniyccx cervrisiue l 4 Rlmzlolorulu ruhru l0 2 Candida ulhicanx lo 4 .5 PMIHIUIHOIIUA' uz'ruginnxa 100 60 70 I00 Pro/mu rulguris I0 3(1 40 Kli'lmir'llu nwunmnim' 2O 60 Sullmmvllu [rpltimurium 25 30 50 lzh'clu'rl'cltiu coli 6,5 15 25 25 S/repmmtcux Iltili.\ l 0,5 0,5 0,7 25 .S'laplrvlmm'tm mm'm' 5,5 ll) 20 3 We claim:

I. A bactericidal or fungicidal composition comprising l a bactericidally or fungicidally effective amount of a compound of the formula O-C =CH wherein X is hydrogen or halogen, R, is hydrogen or methyl,

and each of R and R is hydrogen or halogen, and (2) a carrier.

2. The composition according to claim 1 in which X is hydrogen, chlorine or bromine, and each of R and R is hydrogen, chlorine, bromine or iodine.

3. A method for combating bacteria or fungi which comprises applying to an area infested by bacteria or fungi a bactericidally or fungicidally effective amount of a compound of the formula X is hydrogen or halogen. R, is hydrogen or methyl.

and each of R and R is hydrogen or halogen. 4. The method according to claim 3 in which X is hydrogen, chlorine or bromine, and each of R and R is hydrogen, chlorine bromine or iodine.

5. The method according to claim 4 in which the compound is oQcowian 6. The method according to claim 4 in which the compound is 7. The method according to claim 4 in which the compound is 9. The method according to claim 4 in which the compound is O-PClW-CHHCH 10. The method according to claim 4 in which the compound is OCO-CH=CH 2 ll. ilk mcthod according to claim 4 in which the compound is 12. The method according to claim 4 in which the compound is l3. 'lhc mclhod according to claim 4 in which the compound is 

1. A BACTERICIDAL OF FUNGICIDAL COMPOSITION COMPRISING (1) A BACTERICIDALLY OR FUNGICIDALLY EFFECTIVE AMOUNT OF A COMPOUND OF THE FORMULA
 2. The composition according to claim 1 in which X is hydrogen, chlorine or bromine, and each of R2 and R3 is hydrogen, chlorine, bromine or iodine.
 3. A method for combating bacteria or fungi which comprises applying to an area infested by bacteria or fungi a bactericidally or fungicidally effective amount of a compound of the formula
 4. The method according to claim 3 in which X is hydrogen, chlorine or bromine, and each of R2 and R3 is hydrogen, chlorine bromine or iodine.
 5. The method according to claim 4 in which the compound is
 6. The method according to claim 4 in which the compound is
 7. The method according to claim 4 in which the compound is
 8. The method according to claim 4 in which the compound is
 9. The method according to claim 4 in which the compound is
 10. The method according to claim 4 in which the compound is
 11. The method according to claim 4 in which the compound is
 12. The method according to claim 4 in which the compound is
 13. The method according to claim 4 in which the compound is 